[FR] Support for using lmdb format files in fiftyone

[swatideshpande2228]

I am trying to use fiftyone with a dataset in lmdb format (.mdb) and I want to know which class I should extend to add support for it? This database is binary and does not have individual file path entries.

[brimoor]

Hi @swatideshpande2228 👋

FiftyOne is fundamentally designed to have all data stored in MongoDB, which filepaths on disk to media files. It would be a ton of work to write a Dataset subclass that instead pulls data from an lmdb, as the public interface of the SampleCollection class is quite extensive.

You can certainly, however, write an importer that will load your data into FiftyOne. Here's some advice on doing that: https://github.com/voxel51/fiftyone/issues/1636#issuecomment-1064303172

[swatideshpande2228]

Thanks

[swheaton]

closing as won't do, it should be done with a custom importer